Author:

Alvin,K.L.

Year:

1968

Title:

The spore-bearing organs of the Cretaceous fern Weichselia Stiehler.

Reference:

Alvin,K.L. (1968) The spore-bearing organs of the Cretaceous fern Weichselia Stiehler. Journal of the Linnean Society of London,(Botany) Vol. 61 # 384 P. 87- 92

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